Place paper so that the short edges of paper are parallel with the front of desk; bisect the back edge of paper; place a point two inches directly in front of this point; with this point as a center, draw a two inch horizontal line: this line shall be the back edge of an oblong two inches by eight and one-fourth inches: construct the oblong.

On the right and left edges of oblong, beginning at upper edge, set a one-fourth inch space, below it four two inch spaces; join all opposite points.

The point one-fourth of an inch below the upper edge is No. 1, and so on.

Place points on the lines one-half inch above points three and four; join with the ruler point two in the left with the point one-half inch above three in the right; draw diagonally upward to the left from point 2 a line two and one-fourth inches in length.

Join with the ruler point 3, to the left, with the point one-half inch above the point 4, to the right; draw a line diagonally upward from point 3, to the left, two and one-fourth inches in length; connect the left ends of these lines. On these lines one-fourth of an inch from left ends place points; join opposite points; from corresponding points draw a similar figure on the right side of same square.

On right and left sides of upper square and the one above lower square, construct one-fourth inch,margins, cutting all corners as in cube.

Transfer to card-board to a scale of two to three.

Cut, crease, fold and glue.